Power Cables

Structure of the New Standard

AJH Cable Solutions aims to provide excellent customer care without compromising quality or price at the highest standards possible. To ensure this, all products are manufactured in accordance with BS EN 62305, BS EN 50164 and BS 7430.
BS 65551 has now been replaced with a combination of new standards based on the recently introduced CENELEC (European) standards.
Structure of the New Standard:
BS EN 62305 is a series of publications in four parts, all of which have to be taken into consideration when designing lightning protection.
BS EN 6230 (Part 1) General Principles. This is an introduction to other parts of the standard and covers the general principles involved in the design. The sources and types of damage that need to be evaluated are clarified together with the types of loss/ risk that are possible due to lightning. It defines the relationship between damage and loss that are the basis for the risk assessment calculations in part 2 and also introduces the concepts Lightning Protection Zones (LPZs) and separation distances used when preparing a lightning protection scheme. The definitions of lightning current parameters are also provided and these are used in selection and implementation protection measures as detailed in parts 3 and 4.
BS EN 62305-2 (Part 2) Risk Management. This is significantly more detailed than in previous standards and details the process for determining the risk of lightning damage to structures and their contents. The results of the risk assessment determine the level of Lightning Protection System (LPS), both internal and external, required.
BS EN 62305-3 (Part 3) Physical Damage to Structures and Ufe Hazard. This part of the new standard relates most closely with BS 6651 and deals with the protection measures to be used in and around a structure. It gives guidance on the design of both internal and external Lightning Protection Systems. An external LPS consists of an Air Termination System, a Down Conductor System and an Earth Termination System the parts of which require to be connected by components complying with the BS EN 50164 series.The AJH Cable Solutions range of products are tested by independent testing facilities and comply with the BS EN 50164 series of standard for the manufacture of lightning protection components. BS EN62305-4 (Part 4) Electrical and Electronic Systems within Structures. This standard covers the protection of electrical and electronic systems within structures. Using the concept of Lightning Protection Zones (LPZs) it covers the design, installation, maintenance and testing of an LEMP – Lightning Magnetic Impulse Protection system within a structure.
Lightning Protection Components:
Previous standards for Lightning Protection recommended the use of specific materials for lightning protection components. Now with the release of BS EN 50164 series of standards the focus is on performance and testing. This standard consists of the following parts.